Cita APA (7a ed.)

Del Prado, M. G. (1960). "A short history of the district of Albay". s.n.

Cita Chicago Style (17a ed.)

Del Prado, Mariano Goyena. "A Short History of the District of Albay". s.l: s.n, 1960.

Cita MLA (8a ed.)

Del Prado, Mariano Goyena. "A Short History of the District of Albay". s.n, 1960.